You can return your mail-in ballot to a drop slot / drop box at your local election office, which saves them postage fees and gives you more certainty it arrived. If you can’t spare the time then the mail still works, but for those that are worried, it’s allowed.

The location of the drop box for my precinct wasn't included in the state's list, but it ended up being a slot at one of the service windows at the city clerks office. Quick and easy.

I can't vote, but i can drive. Is it legal to drop someone else's ballot to the local election office? I'll drop it for people who can't go.

That’s derisively known as ballot harvesting and the legality varies. Republicans generally say it’s cheating and try to pass laws to ban it, except when they do it themselves. https://twitter.com/libsinamerica/status/1261069338427211782...

Varies per state.

Or toss it?